1H-Isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro-2-((4-nitrophenyl)amino)- 2-((4-Nitrophenyl)amino)-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione 61152-64-5